What this will do is allow you to setup "mail" from "Other(customised name)"............I named it "BMW".
It then generates a custom 16 digit password that you enter as your Google password rather than your normal one during the mail setup process at http://www.bmw-connecteddrive.co.uk settings/Set up services/E-Mail accounts

Works a treat but doubt I'll use it much......just bugged me that I couldn't get it working.

"There are fewer more distressing sights than that,Of an Englishman in a baseball cap
And we'll die in the class we were born,Well that's a class of our own my love."